## Test how llvm-readobj/llvm-readelf tools handle invalid SHT_GNU_verdef sections.
## Check that we report a warning when sh_link references a non-existent section.
# RUN: yaml2obj %s --docnum=1 -DLINK=0xFF -o %t1
# RUN: llvm-readobj -V %t1 2>&1 | FileCheck %s --check-prefix=INVALID-LINK-LLVM --implicit-check-not="warning:" -DFILE=%t1
# RUN: llvm-readelf -V %t1 2>&1 | FileCheck %s --check-prefix=INVALID-LINK-GNU --implicit-check-not="warning:" -DFILE=%t1
# INVALID-LINK-LLVM: warning: '[[FILE]]': invalid section linked to SHT_GNU_verdef section with index 1: invalid section index: 255
# INVALID-LINK-GNU: Version definition section '.gnu.version_d' contains 0 entries:
# INVALID-LINK-GNU: warning: '[[FILE]]': invalid section linked to SHT_GNU_verdef section with index 1: invalid section index: 255
# INVALID-LINK-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 255 (<corrupt>)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Name: .gnu.version_d
Type: SHT_GNU_verdef
Link: [[LINK]]
Entries: []
## Check that we report a warning when the sh_link field of a SHT_GNU_verdef section references a non-string table section.
# RUN: yaml2obj %s --docnum=1 -DLINK=0x0 -o %t2
# RUN: llvm-readobj -V %t2 2>&1 | FileCheck %s --check-prefix=INVALID-STRING-TABLE -DFILE=%t2
# RUN: llvm-readelf -V %t2 2>&1 | FileCheck %s --check-prefix=INVALID-STRING-TABLE -DFILE=%t2
# INVALID-STRING-TABLE: warning: '[[FILE]]': invalid string table linked to SHT_GNU_verdef section with index 1: invalid sh_type for string table section [index 0]: expected SHT_STRTAB, but got SHT_NULL
## Check that we report a warning when we can't read the content of the SHT_GNU_verdef section.
# RUN: yaml2obj %s --docnum=2 -DSHOFFSET=0xFFFFFFFF -o %t3
# RUN: llvm-readobj -V %t3 2>&1 | FileCheck %s --check-prefix=INVALID-DATA -DFILE=%t3
# RUN: llvm-readelf -V %t3 2>&1 | FileCheck %s --check-prefix=INVALID-DATA -DFILE=%t3
# INVALID-DATA: warning: '[[FILE]]': cannot read content of SHT_GNU_verdef section with index 1: section [index 1] has a sh_offset (0xffffffff) + sh_size (0x0) that is greater than the file size (0x230)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Name: .gnu.version_d
Type: SHT_GNU_verdef
Entries: []
ShOffset: [[SHOFFSET=<none>]]
ShName: [[SHNAME=<none>]]
- Name: .dynstr
Type: SHT_STRTAB
ShName: [[DYNSTRNAME=<none>]]
DynamicSymbols:
- Name: foo
## Check that llvm-readelf reports a warning when the name of the SHT_GNU_verdef section can't be read.
# RUN: yaml2obj %s --docnum=2 -DSHNAME=0xFF -o %t.invalid.name
# RUN: llvm-readobj -V %t.invalid.name 2>&1 | \
# RUN: FileCheck %s --check-prefix=INVALID-NAME-LLVM -DFILE=%t.invalid.name --implicit-check-not=warning:
# RUN: llvm-readelf -V %t.invalid.name 2>&1 | \
# RUN: FileCheck %s --check-prefix=INVALID-NAME-GNU -DFILE=%t.invalid.name --implicit-check-not=warning:
# INVALID-NAME-LLVM: VersionDefinitions [
# INVALID-NAME-LLVM-NEXT: ]
# INVALID-NAME-GNU: warning: '[[FILE]]': unable to get the name of SHT_GNU_verdef section with index 1: a section [index 1] has an invalid sh_name (0xff) offset which goes past the end of the section name string table
# INVALID-NAME-GNU-NEXT: Version definition section '<?>' contains 0 entries:
# INVALID-NAME-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (.dynstr)
## Check that llvm-readelf reports a warning when we are unable to read the name of
## the section linked with the SHT_GNU_verdef section (usually ".dynstr").
# RUN: yaml2obj %s --docnum=2 -DDYNSTRNAME=0xFF -o %t.invalid.name2
# RUN: llvm-readobj -V %t.invalid.name2 2>&1 | \
# RUN: FileCheck %s --check-prefix=INVALID-NAME-LLVM -DFILE=%t.invalid.name2 --implicit-check-not=warning:
# RUN: llvm-readelf -V %t.invalid.name2 2>&1 | \
# RUN: FileCheck %s --check-prefix=INVALID-NAME2-GNU -DFILE=%t.invalid.name2 --implicit-check-not=warning:
# INVALID-NAME2-GNU: Version definition section '.gnu.version_d' contains 0 entries:
# INVALID-NAME2-GNU-NEXT: warning: '[[FILE]]': unable to get the name of SHT_STRTAB section with index 2: a section [index 2] has an invalid sh_name (0xff) offset which goes past the end of the section name string table
# INVALID-NAME2-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (<?>)
## Check that we report a warning when a SHT_GNU_verdef section contains a version definition
## that goes past the end of the section.
# RUN: yaml2obj %s --docnum=3 -o %t4
# RUN: llvm-readobj -V %t4 2>&1 | FileCheck %s --check-prefix=DEF-PAST-END -DFILE=%t4
# RUN: llvm-readelf -V %t4 2>&1 | FileCheck %s --check-prefix=DEF-PAST-END -DFILE=%t4
# DEF-PAST-END: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: version definition 1 goes past the end of the section
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Name: .gnu.version_d
Type: SHT_GNU_verdef
Entries:
- Names:
- FOO
ShSize: 1
DynamicSymbols:
- Name: foo
## Check that we report a warning when a SHT_GNU_verdef section contains a version definition
## that refers to an auxiliary entry that goes past the end of the section.
# RUN: yaml2obj %s --docnum=4 -o %t5
# RUN: llvm-readobj -V %t5 2>&1 | FileCheck %s --check-prefix=AUX-PAST-END -DFILE=%t5
# RUN: llvm-readelf -V %t5 2>&1 | FileCheck %s --check-prefix=AUX-PAST-END -DFILE=%t5
# AUX-PAST-END: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: version definition 1 refers to an auxiliary entry that goes past the end of the section
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Name: .gnu.version_d
Type: SHT_GNU_verdef
Entries:
- Names:
- FOO
ShSize: 21
DynamicSymbols:
- Name: foo
## Check that we can dump a SHT_GNU_verdef section properly even if it contains version names strings
## that overrun the linked string table.
# RUN: yaml2obj %s --docnum=5 -o %t6
# RUN: llvm-readobj -V %t6 2>&1 | FileCheck %s --check-prefix=PAST-STRTAB-END-LLVM --implicit-check-not="warning:" -DFILE=%t6
# RUN: llvm-readelf -V %t6 2>&1 | FileCheck %s --check-prefix=PAST-STRTAB-END-GNU --implicit-check-not="warning:" -DFILE=%t6
# PAST-STRTAB-END-LLVM: VersionDefinitions [
# PAST-STRTAB-END-LLVM-NEXT: Definition {
# PAST-STRTAB-END-LLVM-NEXT: Version: 1
# PAST-STRTAB-END-LLVM-NEXT: Flags [ (0x0)
# PAST-STRTAB-END-LLVM-NEXT: ]
# PAST-STRTAB-END-LLVM-NEXT: Index: 0
# PAST-STRTAB-END-LLVM-NEXT: Hash: 0
# PAST-STRTAB-END-LLVM-NEXT: Name: <invalid vda_name: 5>
# PAST-STRTAB-END-LLVM-NEXT: Predecessors: []
# PAST-STRTAB-END-LLVM-NEXT: }
# PAST-STRTAB-END-LLVM-NEXT: ]
# PAST-STRTAB-END-GNU: Version definition section '.gnu.version_d' contains 1 entries:
# PAST-STRTAB-END-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 2 (.strtab)
# PAST-STRTAB-END-GNU-NEXT: 0x0000: Rev: 1 Flags: none Index: 0 Cnt: 1 Name: <invalid vda_name: 5>
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Name: .gnu.version_d
Type: SHT_GNU_verdef
Link: .strtab
Entries:
- Names:
- FOO
- Name: .strtab
Type: SHT_STRTAB
DynamicSymbols:
- Name: BAR
## Check we report a warning when a version definition is not correctly aligned in memory.
# RUN: yaml2obj %s --docnum=6 -o %t7
# RUN: llvm-readobj -V %t7 2>&1 | FileCheck %s --check-prefix=MISALIGNED-DEF -DFILE=%t7
# RUN: llvm-readelf -V %t7 2>&1 | FileCheck %s --check-prefix=MISALIGNED-DEF -DFILE=%t7
# MISALIGNED-DEF: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: found a misaligned version definition entry at offset 0x0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Type: Fill
Size: 0x1
- Name: .gnu.version_d
Type: SHT_GNU_verdef
Link: .dynstr
Info: 0x1
Entries:
- Names:
- FOO
DynamicSymbols:
- Name: foo
## Check we report a warning when an auxiliary entry is not correctly aligned in memory.
# RUN: yaml2obj %s --docnum=7 -o %t8
# RUN: llvm-readobj -V %t8 2>&1 | FileCheck %s --check-prefix=MISALIGNED-AUX -DFILE=%t8
# RUN: llvm-readelf -V %t8 2>&1 | FileCheck %s --check-prefix=MISALIGNED-AUX -DFILE=%t8
# MISALIGNED-AUX: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 1: found a misaligned auxiliary entry at offset 0x13
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Name: .gnu.version_d
Type: SHT_GNU_verdef
Flags: [ SHF_ALLOC ]
Link: .dynstr
Info: 0x1
## The byte offset to the auxiliary entry is 0x13, i.e. it is not correctly aligned in memory.
Content: "0100000000000100000000001300000000000000"
DynamicSymbols:
- Name: foo
Binding: STB_GLOBAL
## Check how we handle a version definition entry with an unsupported version.
# RUN: yaml2obj %s --docnum=8 -o %t9
# RUN: llvm-readobj -V %t9 2>&1 | FileCheck %s --check-prefix=UNSUPPORTED-VERSION -DFILE=%t9
# RUN: llvm-readelf -V %t9 2>&1 | FileCheck %s --check-prefix=UNSUPPORTED-VERSION -DFILE=%t9
# UNSUPPORTED-VERSION: warning: '[[FILE]]': unable to dump SHT_GNU_verdef section with index 1: version 65278 is not yet supported
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Name: .gnu.version_d
Type: SHT_GNU_verdef
Link: .dynstr
Info: 0x1
Entries:
- Version: 0xfefe
Names: []
DynamicSymbols:
- Name: foo
## Check we report a warning when trying to print version symbols, but SHT_GNU_verdef
## is invalid due to any reason.
# RUN: yaml2obj %s --docnum=9 -o %t10
# RUN: llvm-readobj -V %t10 2>&1 | FileCheck %s --check-prefix=INVALID-VERDEF-LLVM -DFILE=%t10
# RUN: llvm-readelf -V %t10 2>&1 | FileCheck %s --check-prefix=INVALID-VERDEF-GNU -DFILE=%t10
# INVALID-VERDEF-LLVM: VersionSymbols [
# INVALID-VERDEF-LLVM-NEXT: Symbol {
# INVALID-VERDEF-LLVM-NEXT: Version: 0
# INVALID-VERDEF-LLVM-NEXT: Name: {{$}}
# INVALID-VERDEF-LLVM-NEXT: }
# INVALID-VERDEF-LLVM-NEXT: Symbol {
# INVALID-VERDEF-LLVM-NEXT: Version: 2
# INVALID-VERDEF-LLVM-NEXT: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 2: version definition 1 goes past the end of the section
# INVALID-VERDEF-LLVM-NEXT: Name: foo@<corrupt>
# INVALID-VERDEF-GNU: Version symbols section '.gnu.version' contains 2 entries:
# INVALID-VERDEF-GNU-NEXT: Addr: 0000000000000000 Offset: 0x000040 Link: 3 (.dynsym)
# INVALID-VERDEF-GNU-NEXT: warning: '[[FILE]]': invalid SHT_GNU_verdef section with index 2: version definition 1 goes past the end of the section
# INVALID-VERDEF-GNU-NEXT: 000: 0 (*local*) 2 (<corrupt>)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_DYN
Sections:
- Name: .gnu.version
Type: SHT_GNU_versym
Flags: [ SHF_ALLOC ]
AddressAlign: 0x0000000000000002
EntSize: 0x0000000000000002
Entries: [ 0, 2 ]
- Name: .gnu.version_d
Type: SHT_GNU_verdef
Flags: [ SHF_ALLOC ]
AddressAlign: 0x4
Info: 0x1
Entries: []
DynamicSymbols:
- Name: foo
Binding: STB_GLOBAL
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